Senior Shopify Frontend Developer - Freelance London

Underwaterpistol (Shopify Plus Agency); United Kingdom; Hybrid; GBP 46,125 - 64,575; Part time

Job summary

A creative e-commerce agency based in London is seeking a freelance Senior Developer for an onsite position. This role involves leading the implementation of front-end features and requires strong proficiency in HTML5, CSS3, and JavaScript, as well as experience with Shopify. The developer will work closely with clients directly, managing priorities, and ensuring high-quality code. The position is set for a rolling 3-month contract with a competitive daily rate.

Qualifications

• Experience with Shopify.
• Strong proficiency with HTML5, CSS3, and Vanilla JavaScript.
• Experience working with Liquid (Shopify).
• Proficiency with Git (or similar version control).

Responsibilities

• Build out design comps accurately and efficiently.
• Write structured, well-organised, reusable code.
• Inspect, debug, and troubleshoot bugs and QA issues.
• Lead on assigned development projects, making technical recommendations.

Skills

Experience with Shopify

Strong proficiency with HTML5, CSS3, and Vanilla JavaScript

Experience working with Liquid (Shopify)

Understanding of LESS and SASS pre‑processing

Strong grasp of cross‑browser compatibility and responsive development

Proficiency with Git (or similar version control)

Understanding of SEO and UX best practices

Excellent attention to detail

Strong communication and documentation skills

Job description

A creative e-commerce agency based in London is seeking a freelance Senior Developer for an onsite position. This role involves leading the implementation of front-end features and requires strong proficiency in HTML5, CSS3, and JavaScript, as well as experience with Shopify. The developer will work closely with clients directly, managing priorities, and ensuring high-quality code. The position is set for a rolling 3-month contract with a competitive daily rate.